Wherever Golf Is Played Those Who Believe in Quality Make Our Fine Course Accessories the Supreme Courtesy a Club Can Offer Its Players

Home , Mineral absorption

r over a properly prepared surface - improves water infiltra- soils and the water-holding capacity of light (sand) soils. tion and retention during the hot dry summer weather Organic mulch can increase the size of soil aggregates in and reduces the need for irrigation. Soil moisture vapor the surface soil and total porosity. Improved aeration can condense on the cooler mulch at night and return favors root growth and other biological activity which, in moisture to the soil. In the spring or during rainy periods, turn, enhances soil structure. Mulch helps prevent ero- when the upper soil layers tend to be saturated, some sion and compaction. It also prevents cracking of clay mulches act like sponges and hold water. Unless the soil Cracks increase water loss and break roots. mulch texture is too fine, roots can grow through the upper mulch layers and receive adequate amounts of Chemical Properties. As organic mulches decompose oxygen and moisture. they are converted to humus. During this change, much of the nitrogen, soil phosphate, sulfate, and other inor- Soil temperature moderation is important. Mulch can ganic elements become part of the humus fraction of the keep summer soil temperatures lower and winter soil soil. With the aid of various microorganisms, the minerals temperatures higher. Turf and bare ground temperatures of humus are made available to the roots. Also, by lower- in the summer often exceed the limits past which roots of ing surface soil evaporation, mulches reduce the soluble trees and shrubs can live. Without snow in the winter, turf salt content which can build to toxic concentrations and bare ground may freeze, and when soil temperatures during periods of low rainfall. drop below 10 degrees F roots begin to die. Summer heat and drought can kill tree and shrub roots that grew Biological Properties. Mulch provides a favorable en- in late spring. Then they'll regrow them in the fall, only to vironment for the growth and development of many types lose them again to winter cold. This abnormal root loss of soil fauna and flora. The stimulation of aerobic or- requires great expenditures of energy for regrowth and ganisms will improve soil granulation, stability, and water winter loss may affect mineral absorption in early spring infiltration. Mulch makes a favorable environment for during foliation. By minimizing temperature fluctuations, earthworms. Research has shown that composted mulch helps more roots survive to support top growth. hardwood bark mulches can reduce root diseases: the increased biological activity is helpful in favoring decom- Soil Property Improvement. Physical Properties. Most posing organisms and reducing pathogens. Mulches organic mulches are light and porous. When incor- reduce week competition by inhibiting germination. porated, they can improve the aeration of heavy (clay) Wherever golf is played Those who believe in quality make our fine course accessories the supreme courtesy a club can offer its players. Call today for our all new Catalog showing the entire Par Aide line of tee and green accessories. 612/646-7368

Classic Quality from Tee to Green Par Aide Products Co. • 296 N. Pascal Street • St. Paul, MN 55104 OUR NEW FAIRWAY MIX

49 • 16 • 22

WITH M.T.P.*

FROM: NORTH STAR TURF, INC 3080 Centerville Road • St. Paul, MN 55117 NEW EXCITING FAIRWAY MIX "Bred to meet the needs of the superintendent - Engineered for the mechanic — keeping the operator in mind."

ALL NEW HM-11 ALL NEW DIES 49 HP Diesel Water Cooled 16 HP Diesel

Unmatched benefits an consistent and predicts *M.T.P. grass or existing turf. Out performs the comj MULTI-TRACTION PRODUCT One of the most efficie Optional ALL WHEEL DRIVE in the industry. Compact liquid cooled Available for all models, even turf mowing over i features on the go low fuel consumption, e engagement/disengagement. Fast and accurate ball i Quick visual results. * "M.T.P. GOES WHERE THE GRASS GROWS!!' Promotes vigorous cutt Compatible with a full Maintenance Equipmer JACOBSEN TEXTRON Jacobsen Division of Textron Inc. 22 16

ALL NEW LF-100 22 HP Diesel Water Cooled

Our quality consistent 49 • 16 • 22 formulation will provide you all the performance flexibility and ¡EL TRI-KING in-stock selection you need for Fast and Accurate response to the toughest turf challenges — Mater Cooled Call Today To Arrange A d results that are Demonstration On Your Turfi ble on newly planted petition in sun or shade, nt cost per acre figures "WE INITIATE SATISFACTION" engines that promote in extended period with conomical diesel engine, oil. NORTH STAR TURF, INC. 3080 Centerville Road • St. Paul, MN 55117 ing. range of Jacobsen Turf 1-612-484-8411 it. 1-800-592-9513 Q. Why is America's interest in Ringer growing? A Because Ringer has laid the groundwork for a whole new approach to turf care.

The Ringer line of Restore® Products now includes: Turf Restore® - for golf course and landscape use. Greens Restore® - for golf course greens and tees. Super Greens Restore® - for problem greens. Each of these products restore the biological balance of the soil in a natural way.

* Beat IBDU, SCU, UF, 41-0-0 and Urea, for Color and Quality in Fall Fertilization Study and for Spring Growth!* * Can be applied at full lb. N.M rate to bent grass at 105° F. Safely without burning! * 7+ Years of Data Supporting Disease Suppression! * Quick Green-UP — Slow Release Curve! * Improves Drainage In Heavy Soils! * Excellent Results in Sandy (Inert) Soil Environments! * Naturally Occurring Soil Microbes Selected For Specific Reasons! * Inhibits L. Korrae, The Cause of Necrotic Ring Spot, And Controls The Disease Under Field Conditions Where It Has Already Started! DISTRIBUTED BY: * Proven To Reduce Thatch!

For Complete Data and Test Results NORTH STAR TURF, INC. Contact North Star Turf, Inc. 3080 Centerville Road • St. Paul, MN 55117 1-612-484-8411 1-800-592-9513 Through the millennia, organic plant material, mostly leaves, has provided the natural mineral recycling for plants. The establishment of a more natural environment for the root system will allow for optimum root growth, which in turn allows for better top growth. A healthy plant is more resistant to disease and insect attack.

PART II: DISADVANTAGES

Organic mulches are generally better than inorganic mulches. But even organic mulches can be detrimental to plant health when used incorrectly.

Unfavorable Microclimate. Excess moisture may occur with fine textured mulches, organic and inorganic. Saw- AERIFYING CO. dust, fine peatmoss, and grass clippings retain moisture ASHLAND, NE 68003 and should not be used as a single mulching material. Also, mulches used over poorly drained soils can result in nitrogen loss (denitrification). Cl'STOM AERIFICATION OF Moisture and oxygen deficiencies are major problems under plastic mulches. Plastic mulch is usually not YOUR TURF AT recommended. If used, it must have holes to allow for water and oxygen infiltration. "12" INCHES DEEP Unfavorable temperatures can occur with mulch. Mulches that reflect light and heat can radiate enough heat to injure plants. Dark-colored rock can absorb solar BY USING THE VERTI-DRAIN® AERATOR WE CAN AERIFY YOUR TURF VERSATILE VEHICLES TO A DEPTH OF 12 INCHES, WITH SALES SERVICE & LEASING YOUR CHOICE OF PATTERN AND TINE DIAMETER. R8 LIGHT UTILITY VEHICLE DAIHATSU Hijet 1984 or Newer EZ-GO Body 2 Wheel Drive or 4 Wheel Drive DEEP Rebuilt Brakes 244cc Engine Rebuilt 3 Cylinder, Water Cooled, aerification Automatic Oil Injection Whisper Quiet, Overhead New Dive Belt Cam Engine promotes improved root development and Diamond Plate Steel Front New Vinyl Rear Fenders 4 Speed Transmission water infiltration. New Seats 1 Year Drive Train Warranty 2 Speed Sub-Transmission For a hciillliRr. better looking Tin t. Rebuilt Steering Optional on 2 Whl. Drive, Check Differential Standard on 4 Whl. Dr. Solid State Ignition Rebuilt Drive Clutch Available in Full Cab, Cut- DEEP New Heavy Duty Rear Springs A-Way Cab or Jumbo Cab 32" x 44" Steel Diamond Plate Aerify. Box with Tailgate Power Take-Off Optional New Soft Track Rear Tires Turf Green Color Live Power Optional But don't get shut out, call now and 800 lb. Capacity book your choice of dates PRICE: $2195.00 Delivered $2095.00 for 3 or More

A one day, on the job demonstration will tell you more (402) 944-2002 about these utility vehicles than I can put in this ad. 800 873-1455 Call Stan Malone today! VERSATILE VEHICLES, INC. Keith Faber 12461 Rhode Island Avenue South Savage, Minnesota 55378 2325 Dawes, (612) 894-1123 (800) 678-1123 Ashland, NE 68003 f radiation during the day and radiate heat in the evening. in deficiency-related diseases. These mulches can stress plants and increase air con- ditioning costs. Toxicity. Toxic substances can be produced when fresh organic mulch is improperly composted. Composted Mulch insulates the soil from surface temperatures. After mulch has an earthy odor; avoid using any mulch with a becoming frozen in the winter,mulch is slow to warm in sour or foul odor. Fresh mulch, especially wood chips, the spring, which slows root growth and function. It is becomes covered with hydrophobic fungal spores. The better to apply organic mulch after a hard frost in the fall water is repelled and the chips do not wet; therefore, they or after frost in the spring. The insulating effect of mulch do not decompose. A few drops of dish soap or wetting can also delay hardiness development, it should not be agent will correct with problem. placed in contact with trunk surfaces; this will allow the trunk base to acclimate for winter. This may be very im- In 1981 an experiment was begun to study the effects of portant in grafted and budded plants with graft junctions turf and mulch on 40 newly planted, bare root, 2-2 1 /2 near the ground line. Under certain conditions, as frost inch diameter "Green Mountain" sugar maples. Mulched occurs, the temperatures just above a mulch may be a trees received a basal layer of two inches of composted few degrees lower than the temperatures above bare soil. leaves topped with two inches of wood chips, mostly This sometimes causes winter injury and bark splitting. fresh, applied on eight-foot diameters. Turf trees had turf to the trunk. The mulch has reduced scorch, increased Nutritional imbalance. A nitrogen deficiency may growth and color, and increased survival compared to develop when fresh mulch is used. Mulch should be the trees surrounded by turf. Two inches of fresh wood composted and applied to the surface, but not incor- chips are being added every 203 years. porated. If using fresh mulch, add a little nitrogen fertilizer. EARLY SUMMER TREE NOTES Calcarious materials (e.g. marble, limestone, volcanic rock) should not be used where soil pH is above 6.5. by Bert T. Swanson Acidic rainfall dissolves this material, causing the soil pH MINNESOTA EXTENSION SERVICE to raise and makes micronutrients (e.g. iron, manganese, zinc, copper) less available to the plant. This may result The combination of last year's drought stress and this Versatile Motor 180 Adds Power 3-Wheel Drive Option.

The Ransomes legend in reel mowing began more than 150 years ago, with Robert Ransome's manufacture of the world's first reel mower. Since that original great idea, Ransomes has made one improvement after another.

Take the Motor 180 as an example. It has always been one of the most versatile, compact triplex riders you can find. But now we've added a smoother, more powerful engine - the Vanguard V-twin. And the good news doesn't stop there.

We've also developed a new Motor 180 model with all of the premium features demanded by high-use operators. We call the new model the TRI5B. Its standard features include hydraulic cutter lifts and a powerful I5HP engine. And three-wheel drive is available as an option.

For superb mowing performance on golf courses, parks, athletic fields, or formal gardens, the Motor 180 is the easy choice - for lots of good reasons.

Most importantly, it produces great-looking turf. A wide 71-inch cut is provided by its three cutting units, two located out-front for better visibility and maneuverability. An independent cutter drive assures that proper cutting speed is maintained, even during low speed maneuvers.

Your choice of five or seven-knife reels for the right finish on any turf. The five-knife unit is built for general purpose mowing. It features fixed RANSOMES head configuration and full width roller for turf protection. Height of cut easily adjusted from 1/2" to 2 1/2".

The optional seven-knife cutting unit is designed for fine cutting applications. The floating head with full-width front and rear rollers allows the unit to closely follow ground contours. Height of cut adjustable from 1/4" to 1 3/4". Both five and seven-knife reels are 6 1/2" diameter. Call Steve Busch at: Long Lake Ford Tractot Inc. 2073 West Highway 12, Long Lake. Minnesota 55356 Telephone (6121475-228L MN WATTS 1-800-548-FORD FAX 475-0386 Milorganite

on dormant turf provides nutrients when they are needed

Convenience — Savings — Success These are the factors that have sold many clubs on a winter Milorganite application in lieu of spring feeding.

1. It works! Milwaukee Country Club has applied 800 to 1200 lbs. Milorganite per acre each and every winter since 1932. The time — Thanksgiving week, before heavy snow falls on irrigated creeping bentgrass fairways. It works on bluegrass and fescue too 2. It Eliminates Spring Feeding! The grass "greens up" early without over-succulent growth Since 1932 the first calendar year feeding at Milwaukee Country Club is t~e second week in June — with Milorganite, naturally. 3. It's a Work Saver! No more worries about wet Spring seasons and lack of Spring labor November through January applications are made on dormant turf with no golfer interference and when t^e work load is light. 4. Delivery is Prompt With Nitrogen at its Highest! October through December are slow shipping months Thus, rail cars and trucks can deliver promptly The same monihs find production of Milorganite with nitrogen at its highest. It is not unusual to get a half percent nitrogen bonus over the guarantee of six per cent 5. Storage is no problem! Unlike chemicals and some synthetic organics, Milorganite is non- leachable its weight and adherence qualities also make it stay in place even on severe slopes Store your spring fertilizer on the ground. 6. Earlier greening than with spring chemical application! Plot work in Minnesota proves this In one series of tests conventional applications of other nitrogen fertilizers failed to catch up with early winter applied Milorganite throughout the entire growing season! 7. It will not increase snowmold! In plot work, we have purposely applied the excessive rate of 200 lbs per 1,000 sq ft. with no snowmold observed Putting greens should be protected with the fungicide applied dry using Milorganite at 30 to 50 lbs per 1,000 sq ft as the earner This has been standard practice for many years in the north country

CAUTION The above statements apply only to Milorganite. Other materials may produce excessive early growth or induce unwanted growth during winter thaws.

Landscape & Turf 15195 Martin Dr.. Eden Prairie. MN 55344 612-934-2380 f year's rains has created all kinds of biological activity or the plant as well as provide some contact upon arrival of lack thereof. the pest. Two applications may be necessary. The European pine sawfly larvae were particularly devastating Drought stressed sugar maples were extremely slow and on mugo pine. It would take approximately two days for limited in breaking bud on the upper one-third to one-half all the old needles on a 3-foot mugo pine to be com- of the tree. These trees should be watered and fertilized pletely gone. Aphids were already becoming prevalent thoroughly to facilitate vegetative growth. By midsummer by June 10 and if the rain continues, be observant for fun- it should be apparent what is dead and what will continue gal diseases that will be much more aggressive this year growing. The dead wood should be removed. than last year.

Some drought stress, plus the late hard freeze in Mid Treat with insecticides and fungicides according to the April, was significantly injurious to the new growth of label where potential economic injury exists. However, many oaks and to some extent growth on green ash. also use preventive treatments by providing proper cul- These were set back but have since pushed new buds tural practices including watering, fertilizing, aeration of and appear to be progressing satisfactorily. However, the soil for trees in heavy clay, pruning or anything that when a second flush is required, it greatly depletes the enhances the fiber and overall growing conditions for the plant's carbohydrate reserves and decreases its plant. tolerance of any subsequent injuries or diseases.

The birch leafminer, canker worms and the European pine sawfly larvae are certainly taking their toll on trees VERTICILLIUM WILT and shrubs. At this time the feeding period of all three of these insects is about complete so actual treatment of the TROUBLING TO SHADE TREES insect is to no avail. However, some insects such as the birch leaf miner and others will have a second generation by Cynthia Ash & Ward C. Stienstra hatch about late June. Therefore, it is useful to spray MINNESOTA EXTENSION SERVICE plants with a systemic insecticide according to the label. Venticillium wilt is a fungal disease which interferes with This will allow for the building of some insecticide within the water conducting system in shade trees. The fungus

INTRODUCING /fTOPDRESSINGN JOHN DEERE GOLF & TURF FAMILY

BULK PEAT AVAILABLE

For A Demonstration Or Information On These Or Other Products Call: RANDALL N0RTHW00D, IA 50459 (sis, TRANSIT MIX Polfus Implement 324-106»33 •New Richmond Minn. 612-439-6776 Offices in Northwood, I A, and Lake Mills, IA CO. •Hastings Wis. 715-246-6565 •Stillwater is soil-borne and enters the plant through wounds in the roots. A natural consequence of having a fungus clog- ging up the water-conducting system is wilting followed OFFTHE TOP by yellowing and dieback. Trees and shrubs showing partial wilt during the growing season may wilt further and die the following year. Others may recover and not wilt in OF MY HEAD succeeding years. The pattern depends on the extent of root infection and the severity of other stresses. When most of the roots are infected, the tree may wilt and die GREG HUBBARD, CGCS before the end of the first summer. Editorial Chairman

Trees showing general and severe wilt cannot be saved DEVELOP AN IRRIGATION PHILOSOPHY - and should be replaced with a nonsusceptible species. Trees with some symptoms may be saved or their life HOLD BACK THE WATER! prolonged for some time if they are watered, fertilized with nitrogen, and pruned of dead and wilting branches. As last summer's drought taught us, water availability for Pruning does not eliminate the fungus from the tree, but golf course use has become a hot issue. As tempera- removes weakened limbs, which may be infected by tures rose and grass plants withered, water resources other fungi. suddenly dwindled and watering bans were mandated throughout the state. Where demand did not meet the Trees and shrubs susceptible to Verticillium wilt need, bushes and trees, turfgrass, and mental outlooks suffered. Though many courses have now recovered Ash - black, blue, European, green, and white from the short term drought effects, the long term Azalea problem of allocating water supplies fairly continues to Barberry - Japanese grow. Suitable water supplies are becoming more scarce Boxwood - Korean and competition for these limited supplies is growing. Catalpa The lesson of 1988 is that the economics of water use, Cherry like that of the oil crisis in the 70's, will demand that we Coffeetree - Kentucky use this precious resource more sparingly and efficiently Dogwood in the future. As demand outsrips supply, we will be Elm - American, Chinese, and slippery forced to change our water use philosophy. No longer Linden - American and littleleaf will water be in unlimited supply, readily available for our Locust - black demands. As ground water reserves and surface water Maple - Amur, Norway and varieties, red, silver and sugar reservoirs become depleted through increased domestic Oak - pin and red and commercial use, and as pumping costs rise, more Pagoda tree pressure will be put on golf courses to reduce their con- Plum sumption. We will find ourselves at the end of the water Rose main, last in line for this precious commodity. Now is the Russian Olive time to prepare for this eventuality. Now is the time to Smoke tree develop new water management strategies. HOLD BACK Sumac - fragrant, smooth, and staghorn THE WATER! Viburnum species The first step to developing new water management The following list of trees and shrubs might serve well as strategies begins with personal commitment, integrating replacements for any trees the fungus kills: old practices with new ideas. Rather than reacting to short term water supply problems through new wells and Arborvitae Juniper improved pumping systems, a long term comprehensive Birch Larch program on both a political and personal level is neces- Fir Mountainash sary. Politically, we should attempt to raise our category Ginkgo Oak - white and bur of water use prioritization to a higher level. Rather than Hackberry Pine being on the end of the water pipeline, we must actively Hawthorn Poplar influence legislative bodies, emphasizing our importance Hickory Serviceberry in the local economy over that of our country club image. Honeylocust Spruce We must stress our role in fulfilling recreational needs for Hophornbeam Willow our ever aging population and for those with more leisure time opportunities. We can also emphasize our importance in the environment, as wild life preserves, air con- ditioners, and water reservoirs. On a personal level, we must renew our devotion to the basics of turf management. Through the application of proper water conserva- f tion principles and cultural practices, we can help assure your irrigation system to make sure it is operating our proper place at the watering trough. Of greatest improperly. Check and adjust water supply valves to assure portance, however, is a personal commitment from you, proper delivery pressure. Repair leaky pipe, faulty irriga- the golf course superintendent, to conserve water and tion heads, and mistimed field controller mechanisms. use it wisely. Zone areas with similar soil and contour conditions together. Prioritize your irrigation areas and water ac- Water conservation principles are simple, don't take a cordingly. Try doing with just a little less water on all your large investment of time or money to implement,and irrigated areas. All these can be done at very little ex- provide the greatest return on investment. A quick review pense and at least assure that you are delivering your of your irrigation practices with these principles in mind water efficiently and where you want it. Once the water is can provide the greatest savings. Irrigation should be where you want it, be sure to add a flow meter to your scheduled on need, as indicated by the turfplants, rather delivery system so you can measure your conservation than one of common practice. Water supply should efforts and alert yourself to problems. In other words, get match the percolation rate of the soil, meeting the needs the most from your existing system and then try to meet a of the plant while avoiding excessive runoff. Irrigation goal of lowered water consumption. should be done at night, deeply and infrequently, as tar- get areas are more easily covered, drift is minimized, and Another method of conserving water is to develop other evaporation rates are lower. When was the last time you supply sources for irrigation purposes. Use of effluent checked your irrigation system's operation at night? Can water has become a regular practice in Florida and the you reduce your irrigation times without any adverse af- Southwestern United States. Secondary or tertiary fects? Have you prioritized your irrigation needs? Do treated water has no appreciable danger as far as human you know how much water you use on the course? life and health is concerned. Use of these water sources, Apply these basic conservation principles to your course however, is limited by supply, location, soil structure, and and watch the rewards. This is the second step in turfgrass variety. Containment of golf course surface developing a new water management philosophy. You run-off through additional ponding areas or improving the must commit yourself to saving water, not abuse the holding capabilities of your irrigation supply pond are privilege of using it. also good alternatives to your present source and offer protection in case of system failure. Once a commitment to water conservation is established, specific conservation strategies can be put in place. CULTURAL APPROACHES Consider the following practices. The third step to water conservation is through the ap- 1. Improve your water conservation through education. plication of proper cultural practices. Various cultural 2. Change traffic patterns where needed. Reroute golf carts, approaches can be implemented to reduce the amount of pedestrian traffic, and equipment traffic patterns. 3. Use mulches around plantings. water required by your turf plants. The main goal is to 4. Erect tree barriers across open areas of land to avoid drying winds. improve the general health of the grass plant through 5. Expand your use of wetting agents and antitranspirants. enhanced root growth by correcting soil, chemical, or 6. Investigate soil moisture measuring devices either soil-based (tensiometers, soil resistance blocks), plant-based (canopy biological properties. The following are some suggested temperature devices), or atmosphere-based (ET pans, ET cultural practices which can reduce water needs. formulas, or weather stations) to aid your water use deci- sions. 7. Increase the use of drought tolerant grasses where possible. 1. Hand syringe rather than program syringe problem areas. Apply a 8. Improve your irrigation system. short syringe prior to your main irrigation program to break up hydrophobic soil conditions and aid soil infiltration. 2. Avoid applications of fertilizer and pesticides during stress periods. IMPROVING YOUR IRRIGATION SYSTEM Practice a fall fertilization program to avoid lush growth during high temperature periods. Water conservation can be easily accomplished through 3. Increase potassium applications to encourage thicker cell walls and deeper rooting. fine tuning your irrigation system, again at very little cost. 4. Use growth regulators wherever possible. The most comprehensive approach would be to install 5. Consider applying turf colorants to dormant turf. computerized central controllers. These devices can 6. Increase soil cultivation programs. 7. Try some different mechanical approaches. Reduce the mowing more accurately measure and control the amount of frequency. Raise your height of cut. Remove grooved water delivered on site, assuring efficient use of water. rollers. Avoid topdressing and vertical mowing. Keep your Integration of weather satellites, moisture sensors, or mowers sharp and well adjusted. In short, reduce the abuse from mechanical equipment and help keep your grassplants evapotranspiration predictors with computerized central healthy. controllers can help determine the complete needs of the turfgrass plant. Though the initial expense is high, the Western states have been forced to conserve water for cost should be returned through increased water savings, years. Water conservation policies are at our doorstep. lowered power costs, and better turf. The wise superintendent will prepare for this eventuality and act. He will correct his deficiencies and develop a Other approaches are less expensive, requiring just a few new water management philosophy. HOLD BACK THE hours of your time. The easiest quick fix is to inspect WATER! TURF VEHICLES And nobody builds tougher vehicles than E-Z-GO.

We don't have to tell you how toug h it is to maintain your turf. pounds and an overwhelming assortment of options and But it's a lot easier with versatile, reliable E-Z-GO turf vehicles. attachments, these labor saving vehicles can expand your Designed for durability and easy maintenance, E-Z-GO's work force while cutting man-hours. three and four wheel gas and electric powered vehicles can Look to E-Z-GO to keep your turf in great shape. handle any job with ease. With payload capacities up to 1500

GXT-1500 with hydraulic dump. GXT-1500with top dresser. XT-500with bed mounted GXT-1500with aerator. sprayer.

•Mfli I GXT-1500 with loading ramp. GXT-1500 with sprayer. GXT-1500with seeder spreader. GXT-800with ball cage.

DISTRIBUTING CO. 039 14900 - 21st Ave. No. Plymouth, Minnesota 55447-4655 (612) 475-2200 ( GCSAA GETS NEW HOME

The Golf Course Superintendents Association of America "We plan to have the building finished and the staff (GCSAA) will break ground in early 1990 to begin con- moved by summer of 1991," said John M. Schilling, struction of a $4 million headquarters complex one mile GCSAA's executive director. Schilling added that the from the group's current Lawrence, Kansas, site. GCSAA building could be ready for occupancy by spring of 1991 President Dennis D. Lyon, CGCS, said that the "if the Kansas weather cooperates." association's officers approved schematic plans for the project during a meeting at the U.S. Open in Rochester, Planned for 35,000 square feet, the new building will N. Y. nearly triple the space available for GCSAA's 42-member professional staff and still leave room for projected "GCSAA's growth has mirrored that of the rest of the golf growth. In addition to the four-story headquarters build- industry," Lyon said. "We not have more than 8,600 ing, the new complex will feature an attached 70-seat members and the association offers more services to classroom and meeting facility. The entire design, which them than ever before. This new building will allow us to is being completed by the Lawrence architectural firm of keep meeting the needs of our growing membership and Peters, Kubota & Glenn, P.A., will "make superintendents the golf community at large." who visit feel proud to be members of GCSAA," according to Lyon. The new site is just west of the current GCSAA building, which has been located on the Alvamar Golf and Country Since 1926, GCSAA has been the national professional Club since the association moved to Lawrence in 1974. association for the men and women who "keep golf Despite the relocation, the new headquarters will still green." By providing a wide range of opportunities for overlook an Alvamar course: a new 18-hole champion- education and professional development for superinten- ship layout being designed by architect Ken Kavanaugh dents, the association has played an ongoing role in im- and developed by Alvamar owner Robert Billings. Con- proving golf conditions both in America and abroad. struction of the course is set to start early next year and both building and course should be complete and open in 1991.

Irrigation SuppCy, Inc. RICHDEL IRRI-TIOLL 2963 Yorkton Ind. Blvd. IPS (Lifetime Warranty) Little Canada, MN 55117 Glues & Primers Controllers / Valves (612) 483-4300 RAIN O-MAT Sprinklers SUPERIOR Valve Boxes Hose Rings Brass Valves Sch 40 Fittings PVC & Poly Pipe Hose Rollers Controllers Pumps & Accessories Brass Impacts w l Heavy Duty Water Hose Valve & Keys Wire & Watertight Connectors Galvinized & PVC Swing Joints Quick Coupler ASH YELLOWS A VISIT TO HAZELTINE

IN MINNESOTA by John Harris, Lafayette Club by D. W. French, Professor I recently made a call on Chris Hague at my request to Department of Plant Pathology view their new pumping station. It was an education to University of Minnesota say the least.

Ash yellows has been confirmed in a woodlot east of Two deep wells supply a holding pond, one of which is a Rochester, killing large trees and the understory ash as new submersible and a second that has been refur- well. The disease has been there for possibly 3-4 years bished. They can fill the holding pond faster than they but has not been detected in any other woodlots in that can drain it via irrigation. The holding pond was enlarged part of Minnesota. and dredged to a depth of 15 feet. I can't recall the capacity but many zeros followed the number two. A 24" Ash yellows has caused extensive losses in the north- culvert fed a wet well which was 20 feet deep. Three eastern and central states including Indiana and Iowa. switches controlled the high, low water level and the 3rd Dr. Wayne Sinclair of Cornell University suggested that for flooding. The pumping station is a prefab with 3 the disease is limited by colder climates and even though pumps. A 60 hp, 40 hp and a jockey 20 hp delivering up occurring in eastern Canada has been limited in its to 1300 GPM. The water flow is monitored by a northward movement. Thus there is some optimism that transducer and flow meter. The data is fed into a small the weather in Minnesota may not favor development of chip in the control box thusly back out to the pump starts the disease in this state. A similar disease, elm yellows and electronic butter fly valves. Only the pumps and (also known as phloem necrosis of elm), was found in water flow needed is delivered, at any rate, in any se- Minnesota in 1976 in three widely separated areas - quence. Other controls include phase cut out, low pres- Alexandria, North St. Paul and Rochester, but has not sure cut out, high pressure cut out, heat sensor cut out, a bee found since. That year, 1976, could very well have pressure graph, and a flow meter. been ideally suited for the movement of the vectors of elms yellows. Because we have not seen elm yellows The pump house itself was partially buried with vents on since 1976 suggests that these organisms may not be each side of the house below grade, facing the pump able to survive in Minnesota. shafts. A ceiling fan drew air up and out; therefore pulling air through the vents and over the pumps. The added There is reason to be optimistic that ash yellows will not benefit of incoming air, cooled by the surrounding soil cause the losses here that it has in Iowa and Indiana, was a sound idea. however the situation suggests planting fewer ash. Outside the pump house there are three green lights and Ash yellows can be identified by its ability to kill trees in one red, indicating which pump is running or, not at all at 1 -3 years and groups of trees are affected. Infected trees a glance. Sky lights in the roof provide ample daytime have thinner crowns, yellow foliage and witches brooms, light and are mounted directly over the pumps for easy which occur on the main stem or large branches, some- removal. times seemingly after the tree is dead. There are other features but for reasons of accuracy Suspected trees should be reported to the University of maybe you should ask the horses' mouth. Chris was Minnesota, Department of Plant Pathology for checking. most considerate and very cooperative to take an hour Ash are subject to other problems and every problem on and a half out of his busy schedule and devote it to my ash is not ash yellows. education. I thank you and hope to return the favor.

We should not completely stop planting ash but it may be wise to plant fewer of them. Following Dutch elm disease, 35% or more of newly planted trees were ash.

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